NUCLEAR-FISSION WITH A LANGEVIN EQUATION

被引：63

作者：

BOILLEY, D

SURAUD, E

ABE, Y

AYIK, S

机构：

[1] KYOTO UNIV,YUKAWA INST THEORET PHYS,KYOTO 606,JAPAN

[2] TENNESSEE TECHNOL UNIV,COOKEVILLE,TN 38505

来源：

NUCLEAR PHYSICS A | 1993年 / 556卷 / 01期

关键词：

D O I：

10.1016/0375-9474(93)90238-S

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A microscopically derived Langevin equation is applied to thermally induced nuclear fission. An important memory effect is pointed out and discussed. A strong friction coefficient, estimated from microscopic quantities, tends to decrease the stationary limit of the fission rate and to increase the transient time. The calculations are performed with a collective mass depending on the collective variable and with a constant mass. Fission rates calculated at different temperatures are shown and compared with previous available results.

引用

页码：67 / 87

页数：21

共 26 条

[1] LANGEVIN APPROACH TO NUCLEAR DISSIPATIVE DYNAMICS [J].

ABE, Y ;

GREGOIRE, C ;

DELAGRANGE, H .

JOURNAL DE PHYSIQUE, 1986, 47 (C-4) :329-338

[2]

[Anonymous], 1984, SPRINGER SERIES SYNE

[3] DAMPING OF COLLECTIVE VIBRATIONS IN A MEMORY-DEPENDENT TRANSPORT MODEL [J].

AYIK, S ;

BOILLEY, D .

PHYSICS LETTERS B, 1992, 276 (03) :263-268

[4] FROM ONE-BODY TO COLLECTIVE TRANSPORT MODELS [J].

AYIK, S ;

SURAUD, E ;

STRYJEWSKI, J ;

BELKACEM, M .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1990, 337 (04) :413-418

[5]

AYIK S, 1992, PHYS LETT B, V284, pE482

[6]

BOHR A, 1975, NUCLEAR STRUCTURE, V2, P660

[7]

BOILLEY D, 1992, 30 P INT WINT M NUCL, P200

[8] DISAPPEARANCE OF SHELL EFFECTS AT HIGH EXCITATION - SELF-CONSISTENT CALCULATIONS AT FINITE TEMPERATURES [J].

BRACK, M ;

QUENTIN, P .

PHYSICA SCRIPTA, 1974, A 10 :163-169

[9] SELF-CONSISTENT CALCULATIONS OF HIGHLY EXCITED NUCLEI [J].

BRACK, M ;

QUENTIN, P .

PHYSICS LETTERS B, 1974, B 52 (02) :159-162

[10] SHAPE DIFFUSION IN THE SHELL-MODEL [J].

BUSH, BW ;

BERTSCH, GF ;

BROWN, BA .

PHYSICAL REVIEW C, 1992, 45 (04) :1709-1719

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